Prioritize your everyday health and wellness by keeping up with your hydration goals! Sensor technology tracks your water intake and syncs your progress to our free hydration tracker app via Bluetooth Bold NEW GLOW illuminates the entire bottle to remind you to drink more water, either at regular intervals or when you are behind on your daily water goal, Choose from 3 exciting light patterns Long-lasting replaceable battery provides an extended operating cycle and is conveniently located at the bottom of the bottle so you can easily replace it without missing a beat BPA-free bottle features a smooth silicone sleeve that improves grip and minimizes condensation, and a matching finger loop, Fits common cupholders, backpack pockets, and bike bottle cages Perfect as a gift for friends and family track each other's progress and make staying hydrated a fun activity! Lid and bottom ring are dishwasher safe, body and sensor can be hand washed This sleek NEW 20 oz. water bottle features a full body illumination allowing the Tritan plastic body to fully glow once activated. This BPA-free bottle includes a battery that is 3x larger, ensuring users will enjoy an extended battery life. The no-charge-needed battery is now easily accessible at the bottom of the bottle. This new design also includes an improved sensor technology for more accurate water intake data along with a smooth silicone sleeve to improve grip and minimize condensation. Using a built-in sensor, the Hidrate Spark 3 bottle tracks your water intake and syncs via Bluetooth to the brand's free hydration app on your phone (available on iOS and Android). When a user falls behind on their hydration goal, LED lights embedded in the bottle glow in customizable patterns as a reminder to stay on track. Users also receive reminder notifications throughout the day via the hydration app.